Cultivator



" "c. G. STRANDLUND,

' Aug. 23, 1932.-

CULTIVATOR 2 Original Filed April 3, 1924 4 Sheets-Sheet l v c. G.STRANDLUND CULTIVATOR Aug. 23, 1932.

Original Filed April 3, 1924 4 Sheets-Sheet 2 Aug. 23, 1932. c. 5.STRANDLUND L CULTIVATOR Original Filed April 3, 1924 4 Sheets-Sheet 3and the rear wheel removed.

Patented Aug. 23; 1932 a COMPANY, or

oUL'rIvAron Original application filed April lvly'invention relates tocultivators and Referring to the drawings inwhich similar numeralsindicate identical'parts- V Figure 1 is aplan view of a cultivator enbodyingmy invention with the parts in position for advance of thecultivator in, a I v V g I I the rlg 321s attached. 1n a slmllar mannerby a rod 35 hookedin a casting 36 on the rig straight line and the rigsin the'ground.

Figure 2 is a similar View, in part, to Fig ure 1 but showing positionofthe parts when steering from the direct line of advance;

Figure 3 is'a side elevation of Figure 1 with the cultivating devices inthe ground,; V I right angle thereto a'sock-et 38m which is V rigidlyheld apost 39 which extends to and Figure 4 is a rear view ofFigure Theframe of the cultivator comprises side bars 1' and 2 which are rigidlysecured respectively to brackets 3 and 4 secured on a i e or tube 5. hesidebars 1 and 2 con- P P verge forwardly andbetween the forward ends ispivotally mounted, by a horizontal transverse bolt 6 a ton ue or )ole 7.Rocln' ably'journaled'in the tube 5 are crank axles 8 and 9 havingvertical: portions 10 and 11 to the lower ends of which are secured, inany suitable manner, sleeves or bearings 12 and 13 inclined downwardlytoward each other. A spindle 14 is rockably journaled in the sleeve 12and has a horizontal portion 15 on which is mounted a supporting wheel16; a similar spindle 17 is rockably journaled in the sleeve 13 and, hasa horizontal portion 18 on which is mounted a support.

ing wheel 19. An arm 20, preferably intewith the spindle 14, extendsupwardly from the innerend of the spindle and sub-- stantially parallelwith thevertical portion 10 of the crank axle 8, and a similar arm 21'is preferably integral with the spindle 17.-

The upper ends ofthe arms 20 and 21 are bent rearwardly, for a purposehereafter explained, and to their rearward terminations rods 22 and 23are respectively connected member 24 p coupling supports the rig 3201ithe'shaft 3, 1924, Serial No. 703,915. Divided and as applicationfiledMay13,"1929. Seria 1No.362,577; Renewed June 5, 1932.

and extend forwardly to pivotal attachment sir 'r zs P TnroFnc oARL'G.STRANDLUND, or MOLINE, rLniivois, ASSIGNOR; r0 LlJEERE &

- norms, ILLINOIS, e CORPORATION OFQILLINOIS to opposite ends of ahorizontally rocking ivotally f supported, intermediate itsl'ength, onthe tongue 7. p i r 7 Q A transverse bar 25 is rigidly's'upported.onbrackets 26 and 27 mounted on the" side bars 1 and2 respectively, andslidably sup? ported in bearings" 28 and 29, on the bar 25,

is a shaft 30. Rigsof cultivating devices are designated by 31 and 322The rig--31 is at-, tachedto the cultivator by a rod 33 having its lowerend hooked in aneye in a casting 34 on the rig .31,;- and the upperendof therod is provided witha loop fitting overthe pipe 82, andhavingfa loop at itsiipper end fitting overthe pipe 5; -Forwardly therig 31 is is secured inf'a socket- 40'on acsleeve 41 attached to therig-31by a bolt 42. IA similar and comprises a sleeve'42 and'a socket 43in on a bolt 47 on the forward part of'the rig 32.

Rigidly bolted centrally on the shaft 30'is a member 48, its rear end acu'rvedjrack 49, and its forward end terminating in a point vwhich issecured a post 44 having its lower end held in a'socket'45 on'a sleeve46 mounted to which is pivotally connected an 'armf50,

preferably integral with the rockingmein ber 24, andcentral thereof.Pivoted intermediate its length, onthebolt which holds the member 48 onthe shaft 30,'is a lever 51 provided with the usualtype ofdatch to engage with the notches in the rack 49; a link 52 is attached to the;forward end of the lever 51 and toan eye on thesleeve 37,.and a 'similarlink 53'is attached to the lever 51',

rearward-of its pivot", and toan eye in the sleeve 42. By operation ofthelever 51 the rigs, through the links52 and '58 attached to the leverand to the sleeves87 and42, can be readily adj ustedtoward or from-eachother to accommodate the desired widthof cultivation. i Y I Mounted inbearings, formed Y preferably I integral with the brackets 26 and 27, isa rock shaft 54 provided with crank ends 55 and 56. Tothe crank end 55is connected a rod 57 extending rearwardly and attached to an eye onthesleevel2; a similar rod 58 is connected t'oithe crank end" 56and toan: eye

on the sleeve 13. A casting 59 is rigid on the crank end 56 of the rockshaft 54, and pivotally mounted thereon is-a-J lever GO-pro- 'vided withthe usual type of latclrtoengage with a rack 61on the rock shaft-5 L andpref erably integral with the casting 59.7 To an eye 62, on the lever60,v and. intermediate its 7 ends, is attached 'a rod 63 which extendsthe rock shale/ 5 4 andheld in positionrby the latchesv on.saiddeversengaging ,withthe racks b'y operationaof the'leven TO.irrespejctivewof Wardiend'sto t-lie brackets 26rg'and respec-' timelyand. converge reanwardlyto suppor ingly shifted downwardly through asleeve 64' on therig 32'. and is securedthereinsbyacotter 655. By.

operation-of -the lever 60,1the rig 32 isra-ised' I or."loweredindependently oftherig- 31, which; i is "also raised orloweredl'by,operationof-a lever- 66-connecte'd to the rig 31 by a'rod 67in a-jmanner similar to the rod 63. -xTh e-vlever, 66-is pivotallymounted-on aicastingi 68:, rig;

idly secured on the:c rank: end 55 f the rock rack 69 011- thecasting68. To raise or lower the lever 7 0 operatingto. rock the shaft"pivotall yv supported onithegc'rank ends of 61 and 69. respectively itfollowsthat both.

rigswilt be raised-orlowered simultaneously the position they may beviii-by actuation of 4 thelevers. 6.0 and-.66; Goiled springsl72fand7.3, mounted on the rods 63' and; 61' respec- V tivelIy, exertanqexpansive force betweenncottersror pins on. said rodsand the sleeves64,-

onrtlie rigs-to holdthe rigstotheir. workwlien in operation. 7

'Bars. 7' and. 7 5 are. secured at; their. fora seat'? 6. convenientlyplaced lo-accommodate leg. rea'cli. of an operatorto foot pieces 7?- andT8, mountedrespectively on, the arms 20 V and. 21,, and by pressureuponv which, the

wheels are steered and, the rigsa correspondshown in. Figure 1thecultiivator is supposed) to be. operating between, straightrows,but';if irregularities should, beencounwheels have been-steered tothe-right and the rigs-shifted. the same directi on, and this} actionis-aceoinp'lishedtby pressure-ofthefoot of the operator on the'footpiece 7 7 rocking,

the arm-2Q forwardly and thereby inipartin g tenedl in the rows, it..wilh be: necessary to steer the wheels and; shift the: rigs to aivoid.injury to thergrowing,plants, ,I-n Figure .2 the a limited rotary motionto the'spindle 14;. during this operation the crank axle 8 isstationary, consequently the horizontal portion 15 of the spindle, whichis'at an obtuse angle to the inclined portion, is swungto the right andsteers the wheel 16 in that direction, the portions 15 and 18 retaininga constant horizontal position. The forward mo-.-. V

tion o f the armforces tlie'rod22 forwardly andv rocks the member24, towhich the rod 23 is connected, and thrusts the rod 23 rear- Wardly,rocking the arm 21 rearwardly and imparting a limited rotary movementrtol the spindle 17 "whereby the horizontalfportion 18 thereof is swungand the 71168119 is steered simultaneously with the wheel 16 and inparallelismtherewith, It is clearly apparent that if the arm 21-"isrocked forwardly by force applied to the footpiece 78,,the operationof'the partsjust ClGSCIlbBClfWlllwbG reversed and the wheels will besteered tothe- The member 24; is-pivotally. support-ed on,

'the tongue 7 and the arm of the:.niember 24-is pivotally connected totheforward point of themember 4:8 by a, vertical bolt 79, in the memberI 18, whichlextends through a slot 8.0.- in the arm 50, Now asthe tongue1' is not movable bodily to right or left,.the'swi;ng;

ofthe member 24, by'the connection of the armfiO-with the member 48,moves the. member 48 in: the "direction; in which the wheelsv a. aresteered,so"that' the shaft 30,. toJwhich Y the member 48 is rigidly"connected, and; the rigs carried thereonare D1OV6d-Sfl1l11llt31180ll$-ly with the steering, of thewheels 16 andi19 and in thesame direction,irrespective ofqthe position'oIf the rigs 31 and32 relativetoeach otherthe, shaft 30 sliding readily in the bearings- 28 and 29.1

As before statedsfthe arms 20 and 21 are 1 bent'rearwardly attheir upperends and to g i the termination-of the bent portions are respectivelyattached-therods 22 and 23,,which extend forwardly to connection." withthe member 24. Nowwhen the master lever is operated, to raise the rigs:31. and. 32 simulstaneously,.the' rock shaft 54-, is actuated to swingthe crank ends thereof rearwardly and. through the rods 57 and 58theaxles 8 and 9- are swung inv the same direction; during this; operation,the member 2 L-and the rods 22and 23, connected to the arms 20'and 21',aresta tionary,-but,the rods 22 and: 23- are attached to 'thearms 20and, 21v respectively, the pointoi attachment being in alignment, andialso in substantially vertical alignment with the axes of thewhe'els 'l6'a'nd 19'Wl1611 the cultiva- I tor'is in operation. 'Now if the arms20and 21 were straight, the point ofi'attachment is of the rods 22 and 23thereto would be for; e

Wardof the axes ofthe wheels,.and would be stationary in theoperationofraising the rigs by actuationof the master-lever. 70, conse-.quently when the crank axles 8} and 9 are swungrearwardly, the movementof the sleeves 1'2 andlS upon the angulated portions of the spindles 14and 17 would cause an out ward flare of the wheels 16 and 19,an'objectionable action to be avoided if possible.

Standard cultivators are constructed witha gather to the wheels, thegather in this instance being too slight to be shown in the drawings;-and to prevent a flare of the wheels 16 and 19 in the operation of:the parts just described, I bend-the upper portions of the 1 arms 20 and21 rearwardly, asshown, and.

to their extremity attach the rods 22 and23 with the attachment insubstantially vertical alignment with the axesof the wheels 16 and 19,when the cultivator, is inoperation, as

before stated, for I find that by this construction the rearward swingof the axles 8 and 9 and the angulated sleeves 12 and 13 thereon, evento the limit of their movement,

will swing the wheels 16 and 19 only a sufli-j cient distance to bringthem into parallel relation with eachother, possibly removing the gatherbut preventing a flare.

What I claim is 1. In an agricultural implement including a frame, thecombination therewith of crank axles supported on the frame, each crankaxle including a substantially vertically depend= ingarm and a sleeverigidly secured tn the lower endthereof and disposed at an angle to thearm, spindles having bent portions rockably journaled in said sleeves,said spindles having horizontal portions on which ground wheels aremounted, means operable torock said spindles in the sleeves inoppositedirections to' simultaneously steer thewheels angularly totheline of draft, earth working devices supported onthe frame,andmechanism connecting the earth working devicesand steering meansoperative to simultaneously move said devices, and wheels in the samedirection.

2. In anagricultural implement including, i} a frame, the combinationtherewith of crank axles supported on the frame, each crank axleincluding asubstantially vertically depending arm and a sleeve rigidlysecured trans-v versely to the lower portion of said arm at 1 an anglethereto, spindles having bent porand similarly move the earth workingdevices.

3. In an agricultural implement including a frame,crank axles supportedon the frame, spindles having substantially horizontal portions, onwhich ground wheels are mounted, the inner portions of said spindlesbeing disposed at an acute angle tothehorizontaland journaledinvbearings on; the axles, a ver-' ticalarm preferably integral with theinner end of each spindle, earth-working devices supported onthe' frame,horizontally disposed rocking member pivoted on the implement andconnected withsaidarms and de-- vices, and means operable to rock one ofsaid arms and spindles and to actuate said memher to rock the otherarmand spindle to steer i the wheels to rightor left and tosimultaneously and similarly move the earth-working.

devices. j

' 4. In an agricultural, implement including f a frame, crank axlessupported-on the frame, spindles having substantially horizontalportions'on which ground wheels; are mounted, the inner portions of saidspindlesjinclined downwardly toward each other and jour- 1 naledinbearings on the axles, a vertical arm preferablyintegral with eachspindle, earthworking, devices supported on; the frame, 7 a horizontallydisposedjrocking 'member pivoted ong-the implement and connected withsaid arms and devices, and means operable to rock one of saidjarms andspindles and to" actuate said memberto rock theother arm and spindle tosteer the; wheels to right orleft and to-simultaneously and similarlymove the earth-working devices.

5. In an agricultural implement including a frame, the combinationtherewith of crank axles supported on the frame, gangs of earthworkingdevices supported on the frame for; lateral adjustment, spindlescomprising'two sections disposed at an obtuse angle toeach other, onesection being rockably mounted on the crank axles so as to. position theother section normally substantially horizontal,

ground wheels on said other-portions, a-rocking member pivotally mountedon a vertical pivot on the implement andconnect'ed with said spindlesand earth-working devices, and

means operable to rock said spindles to steer the wheels and tosimultaneously move the earth-working devices. w

6. In" an agricultural implement including a frame, the combinationtherewith of bearings supported on the frame, and inclined downwardlytoward each other, gallgs of earthworking devices supported on the framefor lateral adjustment, spindles rockably supported in said bearings,ground wheels on thespindles, a horizontally rocking member pivotallymounted on the im-\ plement and connected with said spindles,

and earth -working devices,,means to adjust said devices toward or fromeach other, and means operable to rock one of-said; spindles V forwardlyand actuate said member to rock the other spindle rearwardly to steerthe wheels to right or left and to simultaneously and similarly move theearth-Working den-V vices: irrespective o ftli'e :Qdju'stirieht'thereof.

[7 In an agricultural: implement includinga--fr-ame,- the combinationtherewith'of bear ings supported on-theframe and inolinedl ja-t an;acute angle-to-the horizontal, spindles:

is longitudinally movable, gangs of earth Working devices-supported onsa d shaft and movable laterally therewith,a horizontally rockingmemberpivo-tally mounted' on the implement and connected with said spindles,-and means operable torock one of said sp1n- ,dl'es forwardlyfand actuatesaidmemberto roekthebtherspindle rearWardIy'tosteeF the wlieel s' torightor left and simultane ofthe adjustmenfiofithe gang s -relative-to psaid spindles and operable to rotate said usl'y niovesaid'shaft andgangsin the direc t-ion infwh iohi the wheels are steered? 8; In a'nagriculturalimplement including a frame, the" combinationtherewith ofhear ings supported on the. frame and'incli'ned at an; acute angle {tothehorizontal,spindles rockahly supported in saidbearings, ground wheelson 'thejspindles, a shaft located forwardl'y on theframetransverselythereof,- bearingsonthe frame inwhi'ch said-shaft islongitudinally"movable, gangs" of earthworking devices supported on theshaft and movable laterally therewith, means on the shaft to adjust"said gangs toward or from: eachother, a horizontally rocking member 7.pi'votally mounted on the implement and conne'cted with'said spindlesand gang adjustylngm'eans, means to rock one of'saidspindles forwardlvand actuate said"member torock thep'other'spindl erearwardly to steerthe wheels to right or left and simultaneously movesaid shaftand gangsin the direction: in Wlillfthe wheels-aresteered irrespectivee'achother. p i e 9; In an agricultural implement including a frame,'thecombination therewith of'crank; axlessupported on "theframe, bearings onthe lower 'cnd'fof' said crank aides and in-V olined, at v an acuteangle to the horizontal, spindles 'roeliabl'y supported:insaidfbearings,ground wheels on thespindles, a shaft located; forwardly on the frametransversely thereof, bearings on, the framein which said shaft islongitudinally movable, gangs of earthworking devicessupported onsaidshaft and movablelaterally therewith, means mounted on said shaft"and-connected with said gangs: and operable to adjust them toward orfrom each other, ahorizontally rocking member pivotally mounted on theimplement and 7 connected with said splndles'and gang ad- I justlngmeans, and" means ,operable to :I'OCk one of" said spindles forwardlyand actuate said inembe'r'torookf'the otherspindle'rear V wlardl-y to'stee'r thewheels'tonight or left. I

and simultaneously move saidgangs inthe direction in which the}impl'ementis steered Q irrespective of the adjustment of saidgangs:

' 10. luau-agricultural implementineludingi a frame, thecombinationtherewitlrofbeam ings supported on the frameandlinclineddownwardly toward each other, spindles rockably supported in saidbearings, ground wheels onthe spindles, a shaft located for wardly onthe'frame transver'sely thereof,

bearings on the'fram-e in which said-shaft is su pperted andlongitudinally movable, gangs 7 1 of earth-working devices sli-dablymounted on said-shaft, a member rigidly secured on the I shaft andextending forwardly therefrom, a lever pivoted intermediatedts ends on,said other, a rack on the rear endfofsaid mem 1 ,i so shaft andconnected w th said gangs and op-g ber, a detent'en said lever to-engagewith the rack a-nd hold the gangsin ad justed posi tion relative :toeach I other, a horizontally" rocking member pivotal ly mountedbn'theframe and pivotal'ly'conneotedto-said first mentioned member, means toconnect said---- rock ng memberwlth the spindles, and means to rock, oneof 'said -spindles forwardly and actuate the rocking member to rock theother spindle rearwardlyto steer the-wheel's'torigl lt or left andsimultaneously move said shaft and gangs in the directionin which thewheels are steered irrespecti ve of the adjustment of the gangsbyoperation of saidlever. 7

11. In an agricultural-implement including a frame, the combinationtherewith of bearings supported on thef'rame andinclinedtoward'each'otherat an obtuseang'le, gangs: of earth-worlring devices 'adjust'ably supported on thejfram'e, spindles"journaled said bearingshaving outwardly extending horizontal portions, supporting wheelsmounted on said portions, and mechanism mounted on the frame andconnected"with spindles-in opposite directions an'dto simultaneouslyadjust said earth-working devices.

12. Inanagricultural implement including a frame, the combinationtherewith of bearings supported on the fra-me and inclined toward' eachother at anobtuse angle, gangsof earth-working devicesadjiustablysupported onthe frame, spindles journaled insaidbear ingshaving outwardly extending-horizontal" portions, steermgvarms mounted onther'in clined ends of said spindles, and mechanism.

mounted on the'f'rame and; connected with \i

